<p>Before</p>
<pre><code>Code
    Block</code></pre>

<pre>
Unsafe &lt;Characters&gt;
    thing[0];
    -&gt; ^_^ &lt;-
</pre>

<p>after</p>

<pre><code>This is a paragraph introducing:

~~~~
a one-line code block
~~~~
</code></pre>
		
<p>after 2</p>

<pre>This pre has <br/>  line break tags
another one<br/><br/>  end</pre>